The Tor Browser: addon-sdk/source/test/test-clipboard.js@ac0c01689b40 (annotated)

addon-sdk/source/test/test-clipboard.js@ac0c01689b40 (annotated)

addon-sdk/source/test/test-clipboard.js

Thu, 15 Jan 2015 15:59:08 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 15 Jan 2015 15:59:08 +0100
branch: TOR_BUG_9701
changeset 10: ac0c01689b40
permissions: -rw-r--r--

Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 require("sdk/clipboard");
 const { Cc, Ci } = require("chrome");
 const imageTools = Cc["@mozilla.org/image/tools;1"].
                     getService(Ci.imgITools);
 const io = Cc["@mozilla.org/network/io-service;1"].
                     getService(Ci.nsIIOService);
 const base64png = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYA" +
                   "AABzenr0AAAASUlEQVRYhe3O0QkAIAwD0eyqe3Q993AQ3cBSUKpygfsNTy" +
                   "N5ugbQpK0BAADgP0BRDWXWlwEAAAAAgPsA3rzDaAAAAHgPcGrpgAnzQ2FG" +
                   "bWRR9AAAAABJRU5ErkJggg%3D%3D";
 const base64jpeg = "data:image/jpeg;base64,%2F9j%2F4AAQSkZJRgABAQAAAQABAAD%2F" +
                   "2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCg" +
                   "sOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD%2F2wBDAQMDAwQDBAgEBAgQCw" +
                   "kLEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQ" +
                   "EBAQEBAQEBD%2FwAARCAAgACADAREAAhEBAxEB%2F8QAHwAAAQUBAQEBAQ" +
                   "EAAAAAAAAAAAECAwQFBgcICQoL%2F8QAtRAAAgEDAwIEAwUFBAQAAAF9AQ" +
                   "IDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRol" +
                   "JicoKSo0NTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eX" +
                   "qDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJ" +
                   "ytLT1NXW19jZ2uHi4%2BTl5ufo6erx8vP09fb3%2BPn6%2F8QAHwEAAwEB" +
                   "AQEBAQEBAQAAAAAAAAECAwQFBgcICQoL%2F8QAtREAAgECBAQDBAcFBAQA" +
                   "AQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNO" +
                   "El8RcYGRomJygpKjU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0" +
                   "dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6ws" +
                   "PExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3%2BPn6%2F9oADAMB" +
                   "AAIRAxEAPwD5Kr8kP9CwoA5f4m%2F8iRqX%2FbH%2FANHJXr5F%2FwAjCn" +
                   "8%2F%2FSWfnnir%2FwAkji%2F%2B4f8A6dgeD1%2BiH8bn1BX5If6FmFqW" +
                   "pXtveyQwzbUXGBtB7D2r9l4U4UyjMsoo4rFUeacua75pLaUktFJLZH5NxN" +
                   "xNmmX5pVw2Gq8sI8tlyxe8U3q03uzD8S3dxqOi3NneSeZDJs3LgDOHBHI5" +
                   "6gV%2BkcG%2BH%2FDmJzuhSq4e8XzfbqfyS%2FvH5rx1xTm2MyDEUa1W8X" +
                   "yXXLFbTi%2BkThv7B0r%2FAJ9f%2FH2%2Fxr90%2FwCIVcI%2F9An%2FAJ" +
                   "Uq%2FwDyZ%2FO%2F16v%2FADfgv8j0r%2FhZvgj%2FAKDf%2FktN%2FwDE" +
                   "V%2Fnr%2FYWYf8%2B%2Fxj%2Fmf3R%2FxFXhH%2FoL%2FwDKdX%2F5Azrv" +
                   "xLouo3D3lne%2BZDJja3luM4GDwRnqDX9LeH%2FBud4nhzD1aVC8Xz%2Fa" +
                   "h%2Fz8l%2FePx%2FinjrIMZm1WtRxF4vls%2BSa2jFdYlDUdRsp7OSKKbc" +
                   "7YwNpHce1fqfCvCub5bm9HFYqjywjzXfNF7xklopN7s%2BC4l4lyvMMrq4" +
                   "fD1bzfLZcsltJPqktkYlfsZ%2BUnBV%2FnufVnXaD%2FAMgqD%2FgX%2Fo" +
                   "Rr%2BxvCr%2FkkcJ%2F3E%2F8ATsz5%2FHfx5fL8kX6%2FQjkCgD%2F%2F" +
                   "2Q%3D%3D";
 const canvasHTML = "data:text/html," + encodeURIComponent(
   "<html>\
     <body>\
       <canvas width='32' height='32'></canvas>\
     </body>\
   </html>"
 );
 function comparePixelImages(imageA, imageB, callback) {
   let tabs = require("sdk/tabs");
   tabs.open({
     url: canvasHTML,
     onReady: function onReady(tab) {
       let worker = tab.attach({
         contentScript: "new " + function() {
           let canvas = document.querySelector("canvas");
           let context = canvas.getContext("2d");
           self.port.on("draw-image", function(imageURI) {
             let img = new Image();
             img.onload = function() {
               context.drawImage(this, 0, 0);
               let pixels = Array.join(context.getImageData(0, 0, 32, 32).data);
               self.port.emit("image-pixels", pixels);
             }
             img.src = imageURI;
           });
         }
       });
       let compared = "";
       worker.port.on("image-pixels", function (pixels) {
         if (!compared) {
           compared = pixels;
           this.emit("draw-image", imageB);
         } else {
           callback(compared === pixels);
           tab.close()
         }
       });
       worker.port.emit("draw-image", imageA);
     }
   });
 }
 // Test the typical use case, setting & getting with no flavors specified
 exports["test With No Flavor"] = function(assert) {
   var contents = "hello there";
   var flavor = "text";
   var fullFlavor = "text/unicode";
   var clip = require("sdk/clipboard");
   // Confirm we set the clipboard
   assert.ok(clip.set(contents));
   // Confirm flavor is set
   assert.equal(clip.currentFlavors[0], flavor);
   // Confirm we set the clipboard
   assert.equal(clip.get(), contents);
   // Confirm we can get the clipboard using the flavor
   assert.equal(clip.get(flavor), contents);
   // Confirm we can still get the clipboard using the full flavor
   assert.equal(clip.get(fullFlavor), contents);
 };
 // Test the slightly less common case where we specify the flavor
 exports["test With Flavor"] = function(assert) {
   var contents = "<b>hello there</b>";
   var contentsText = "hello there";
   var flavor = "html";
   var fullFlavor = "text/html";
   var unicodeFlavor = "text";
   var unicodeFullFlavor = "text/unicode";
   var clip = require("sdk/clipboard");
   assert.ok(clip.set(contents, flavor));
   assert.equal(clip.currentFlavors[0], unicodeFlavor);
   assert.equal(clip.currentFlavors[1], flavor);
   assert.equal(clip.get(), contentsText);
   assert.equal(clip.get(flavor), contents);
   assert.equal(clip.get(fullFlavor), contents);
   assert.equal(clip.get(unicodeFlavor), contentsText);
   assert.equal(clip.get(unicodeFullFlavor), contentsText);
 };
 // Test that the typical case still works when we specify the flavor to set
 exports["test With Redundant Flavor"] = function(assert) {
   var contents = "<b>hello there</b>";
   var flavor = "text";
   var fullFlavor = "text/unicode";
   var clip = require("sdk/clipboard");
   assert.ok(clip.set(contents, flavor));
   assert.equal(clip.currentFlavors[0], flavor);
   assert.equal(clip.get(), contents);
   assert.equal(clip.get(flavor), contents);
   assert.equal(clip.get(fullFlavor), contents);
 };
 exports["test Not In Flavor"] = function(assert) {
   var contents = "hello there";
   var flavor = "html";
   var clip = require("sdk/clipboard");
   assert.ok(clip.set(contents));
   // If there's nothing on the clipboard with this flavor, should return null
   assert.equal(clip.get(flavor), null);
 };
 exports["test Set Image"] = function(assert) {
   var clip = require("sdk/clipboard");
   var flavor = "image";
   var fullFlavor = "image/png";
   assert.ok(clip.set(base64png, flavor), "clipboard set");
   assert.equal(clip.currentFlavors[0], flavor, "flavor is set");
 };
 exports["test Get Image"] = function(assert, done) {
   var clip = require("sdk/clipboard");
   clip.set(base64png, "image");
   var contents = clip.get();
   comparePixelImages(base64png, contents, function (areEquals) {
     assert.ok(areEquals,
       "Image gets from clipboard equals to image sets to the clipboard");
     done();
   });
 }
 exports["test Set Image Type Not Supported"] = function(assert) {
   var clip = require("sdk/clipboard");
   var flavor = "image";
   assert.throws(function () {
     clip.set(base64jpeg, flavor);
   }, "Invalid flavor for image/jpeg");
 };
 // Notice that `imageTools.decodeImageData`, used by `clipboard.set` method for
 // images, write directly to the javascript console the error in case the image
 // is corrupt, even if the error is catched.
 //
 // See: http://mxr.mozilla.org/mozilla-central/source/image/src/Decoder.cpp#136
 exports["test Set Image Type Wrong Data"] = function(assert) {
   var clip = require("sdk/clipboard");
   var flavor = "image";
   var wrongPNG = "data:image/png" + base64jpeg.substr(15);
   assert.throws(function () {
     clip.set(wrongPNG, flavor);
   }, "Unable to decode data given in a valid image.");
 };
 require("test").run(exports)